<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>HTML样式</title>
</head>
<body>
<h1 style="background-color: chartreuse">这是一级标题</h1>
<h1 style="font-family:KaiTi">这是一级标题</h1>
<h1 style="color: red">这是一级标题</h1>
<h1 style="font-size:20px">这是一级标题</h1>
<h1 style="background-color: darkkhaki;font-family:仿宋; color: blueviolet; font-size: 30px">这是一级标题</h1>
<h1 style="text-align: center">这是一级标题</h1>

</body>
</html>